2021 Chevrolet Express 2500 Drivetrain Parts

This table covers the Axle / Differential assemblies. Read more

This group shows a single part: GM GENUINE 84447463.

This table covers the Axle bumpers. Read more

One part is listed for the 2021 Chevrolet Express 2500 — GM GENUINE 06263975.

This table covers the Axle shafts. Read more

6 Axle Shaft parts for the 2021 Chevrolet Express 2500 come from 5 brands — USA STANDARD GEAR, DORMAN, RICHMOND and 2 other brands. The "Popular" part is AAM 40054774. Every part fits all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.6L V8).

The Economy section lists 2 options from DORMAN and RICHMOND — the catalog's value-priced group. DORMAN 630325 is listed in this group.

In the Standard Replacement grade, USA STANDARD GEAR, AAM and GM GENUINE supply 4 parts: built to original-equipment specification. A representative part number is AAM 40054774.

This group includes AAM 40054774, DORMAN 630325 and RICHMOND 9225174 and the remaining parts above.

This table covers the Axle Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

This group shows a single part: GM GENUINE S606.

This table covers the Axle Shaft retainers and clips. Read more

2 Axle Shaft Retainer / Clip parts are listed for the 2021 Chevrolet Express 2500, from DORMAN and GM GENUINE. All of them fit every engine offered in the 2021 Express 2500.

Part numbers include DORMAN 13851 and GM GENUINE 14012746.

This table covers the seals where an axle shaft exits the housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Axle Shaft Seal parts are listed for the 2021 Chevrolet Express 2500, from GM GENUINE and TIMKEN. All of them fit every engine offered in the 2021 Express 2500.

Part numbers include GM GENUINE 291316 and TIMKEN 710105.

This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn. Read more

3 CV Joint Boot parts are listed for the 2021 Chevrolet Express 2500, from GM GENUINE and AAM. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include AAM 40215887, GM GENUINE 15898093 and GM GENUINE 23126611.

This table covers the carriers that hold the differential gears in the axle. Read more

6 Differential Carrier parts are listed for the 2021 Chevrolet Express 2500, from AAM, GM GENUINE and USA STANDARD GEAR. AAM 40090728 carries the "Popular" badge. All of them fit every engine offered in the 2021 Express 2500.

The Heavy Duty section lists 1 option from USA STANDARD GEAR — rated for severe service. USA STANDARD GEAR USA26049 is listed in this group.

The Standard Replacement section: 5 options from AAM and GM GENUINE. AAM 40090728 is listed in this group.

Listed part numbers: AAM 40090728, USA STANDARD GEAR USA26049 and AAM 14012695, plus the other parts above.

This table covers the bearings and races that support the differential carrier. Read more

One part is listed for the 2021 Chevrolet Express 2500 — GM GENUINE 84678054.

This table covers the Differential Carrier shims. Read more

4 Differential Carrier Shim parts for the 2021 Chevrolet Express 2500 come from GM GENUINE. 2 parts fit every engine; the other 2 are engine-specific.

This group includes GM GENUINE 22835276, GM GENUINE 22835268 and GM GENUINE 15599629 and the remaining parts above.

This table covers the clutch packs in a limited-slip or locking differential. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Express 2500.

Listed part numbers: GM GENUINE 23404635 and GM GENUINE 84446266.

This table covers the Differential Clutch Pack clips. Read more

GM GENUINE supplies both parts for the 2021 Chevrolet Express 2500. 1 part fits every engine; the other 1 is engine-specific.

Listed part numbers: GM GENUINE 12471533 and GM GENUINE 15599623.

This table covers the Differential covers. Read more

3 Differential Cover parts for the 2021 Chevrolet Express 2500 come from 3 brands — AAM, GM GENUINE and USA STANDARD GEAR. Every part fits all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.6L V8).

Listed part numbers: AAM 40060164, GM GENUINE 22951487 and USA STANDARD GEAR USA32365.

This table covers the Differential Cover bolts. Read more

5 Differential Cover Bolt parts are listed for the 2021 Chevrolet Express 2500, from GM GENUINE and AAM. GM GENUINE 11546347 carries the "Popular" badge. All of them fit every engine offered in the 2021 Express 2500.

Listed part numbers: GM GENUINE 11546347, AAM 4000216910 and AAM 40002169, plus the other parts above.

This table covers the gaskets that seal the Differential Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

3 Differential Cover Gasket parts are listed for the 2021 Chevrolet Express 2500, from AAM, FEL-PRO and GM GENUINE. All of them fit every engine offered in the 2021 Express 2500.

Listed part numbers: AAM 40270026, FEL-PRO 55498 and GM GENUINE 85720902.

This table covers the Differential Cross pins. Read more

2 Differential Cross Pin parts for the 2021 Chevrolet Express 2500 come from GM GENUINE. Every part fits all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.6L V8).

Part numbers include GM GENUINE 22950866 and GM GENUINE 20768565.

This table covers the Differential Crush sleeves. Read more

2 Differential Crush Sleeve parts for the 2021 Chevrolet Express 2500 come from AAM. Every part fits all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.6L V8).

This group includes AAM 14012691 and AAM 40099601.

This table covers the Differential Fill drain plugs. Read more

3 Differential Fill / Drain Plug parts are listed for the 2021 Chevrolet Express 2500, from GM GENUINE and AAM. 2 parts fit every engine; the other 1 is engine-specific.

Part numbers include AAM 40007601, GM GENUINE 55573646 and GM GENUINE 24045309.

This table covers the Differential Lock actuators. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

One part is listed for the 2021 Chevrolet Express 2500 — GM GENUINE 12471530.

This table covers the Differential Lock plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

This group shows a single part: GM GENUINE 23125826.

This table covers the thrust blocks in a locking differential. Read more

GM GENUINE supplies the 5 Differential Lock Thrust Block parts for the 2021 Chevrolet Express 2500.

This group includes GM GENUINE 88983789, GM GENUINE 88983791 and GM GENUINE 88983792 and the remaining parts above.

This table covers the bearings and races on the differential pinion. Read more

3 Differential Pinion Bearing / Race parts for the 2021 Chevrolet Express 2500 come from 2 brands — GM GENUINE and NATIONAL. Every part fits all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.6L V8).

Part numbers include GM GENUINE S1396, GM GENUINE S1397 and NATIONAL A72.

This table covers the baffles that control oil at the pinion bearings. Read more

This group shows a single part: GM GENUINE 22943114.

This table covers the Differential Pinion nuts. Read more

GM GENUINE supplies the 3 Differential Pinion Nut parts for the 2021 Chevrolet Express 2500. 2 parts fit every engine; the other 1 is engine-specific.

This group includes GM GENUINE 09783762, GM GENUINE 84489150 and GM GENUINE 88891763.

This table covers the wear sleeves used to restore a grooved pinion seal surface. Read more

One part is listed for the 2021 Chevrolet Express 2500 — AAM 26060975.

This table covers the seals at the differential pinion yoke. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

5 Differential Pinion Seal parts are listed for the 2021 Chevrolet Express 2500, from SKF, GM GENUINE, TIMKEN and 2 other brands. SKF 21395A carries the "Popular" badge. All of them fit every engine offered in the 2021 Express 2500.

This group includes SKF 21395A, GM GENUINE 86285709 and TIMKEN SL260457 and the remaining parts above.

This table covers the Differential Pinion Shaft Lock bolts. Read more

This group shows a single part: GM GENUINE 11546644.

This table covers kits that group the bearings, races and seals for a differential rebuild. Read more

10 Differential Rebuild Kit parts for the 2021 Chevrolet Express 2500 come from 5 brands — MOTIVE GEAR, BCA, LUK and 2 other brands. The "Popular" part is MOTIVE GEAR R95GRLAMKT. Every part fits all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.6L V8).

The Master Kit section lists 5 options from MOTIVE GEAR, BCA, LUK and 1 other brand — grouped under the catalog's "Master Kit" designation — the notes column spells out what sets them apart. MOTIVE GEAR R95GRLAMKT is listed in this group.

In the Standard Kit grade, MOTIVE GEAR, AAM, BCA and 1 other brand supply 5 parts: grouped under the catalog's "Standard Kit" designation — the notes column spells out what sets them apart. A representative part number is AAM 74067009.

This table covers the ring-and-pinion gear sets that set the axle ratio. Read more

5 Differential Ring and Pinion parts are listed for the 2021 Chevrolet Express 2500, from AAM, GM GENUINE and MOTIVE GEAR. MOTIVE GEAR GM95L carries the "Popular" badge. All of them fit every engine offered in the 2021 Express 2500.

This group includes MOTIVE GEAR GM95L, AAM 40173817 and AAM 40033637 and the remaining parts above.

This table covers the Differential Ring Gear bolts. Read more

2 Differential Ring Gear Bolt parts are listed for the 2021 Chevrolet Express 2500, from AAM and GM GENUINE. All of them fit every engine offered in the 2021 Express 2500.

Part numbers include AAM 14012703 and GM GENUINE 11546991.

This table covers the Differential Spider gears. Read more

GM GENUINE supplies the 3 Differential Spider Gear parts for the 2021 Chevrolet Express 2500. 1 part fits every engine; the other 2 are engine-specific.

Listed part numbers: GM GENUINE 85703141, GM GENUINE 85106133 and GM GENUINE 84446314.

This table covers the Differential washers. Read more

GM GENUINE supplies the 3 Differential Washer parts for the 2021 Chevrolet Express 2500. 1 part fits every engine; the other 2 are engine-specific.

Part numbers include GM GENUINE 14039026, GM GENUINE 00462786 and GM GENUINE 84446285.

This table covers the driveshafts that carry torque from the transmission or transfer case. Read more

9 Drive Shaft parts for the 2021 Chevrolet Express 2500 come from 4 brands — GM GENUINE, DORMAN, GSP and 1 other brand. The "Popular" part is GM GENUINE 84675730. 4 parts fit every engine; the other 5 are engine-specific.

Part numbers include GM GENUINE 84675730, DORMAN 966480 and DORMAN 966451, among others listed above.

This table covers the Drive Shaft bolts. Read more

One part is listed for the 2021 Chevrolet Express 2500 — GM GENUINE 11548472.

This table covers the Drive Shaft Center Support bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

5 Drive Shaft Center Support Bearing parts for the 2021 Chevrolet Express 2500 come from 5 brands — DEA / MARMON RIDE CONTROL, WESTAR, GM GENUINE and 2 other brands. The "Popular" part is GM GENUINE 84448547. Every part fits all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.6L V8).

The Economy section: 2 options from DEA / MARMON RIDE CONTROL and WESTAR. DEA / MARMON RIDE CONTROL A60078 is listed in this group.

Standard Replacement: 3 parts, from GM GENUINE, ANCHOR and PIONEER. A representative part number is GM GENUINE 84448547.

Listed part numbers: GM GENUINE 84448547, DEA / MARMON RIDE CONTROL A60078 and WESTAR DS6558, plus the other parts above.

This table covers the Drive Shaft End yokes. Read more

2 Drive Shaft End Yoke parts are listed for the 2021 Chevrolet Express 2500, from GM GENUINE and USA STANDARD GEAR. All of them fit every engine offered in the 2021 Express 2500.

This group includes GM GENUINE 85114564 and USA STANDARD GEAR USA41204.

This table covers the Drive Shaft retainers. Read more

2 Drive Shaft Retainer parts for the 2021 Chevrolet Express 2500 come from GM GENUINE. Every part fits all 3 engine options (2.8L L4 DIESEL Turbocharged, 4.3L V6 and 6.6L V8).

Part numbers include GM GENUINE 23107857 and GM GENUINE 23170499.

This table covers the Drive Shaft Slip yokes. Read more

5 Drive Shaft Slip Yoke parts for the 2021 Chevrolet Express 2500 come from 3 brands — GM GENUINE, AAM and DORMAN. 4 parts fit every engine; the other 1 is engine-specific.

This group includes AAM 40200758, DORMAN 697519 and GM GENUINE 23324217 and the remaining parts above.

This table covers the seals at the Drive Shaft Slip Yoke. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2021 Chevrolet Express 2500 — GM GENUINE 24226707.

This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle. Read more

7 Gear Oil parts are listed for the 2021 Chevrolet Express 2500, from VALVOLINE and ACDELCO. VALVOLINE VV820 carries the "Popular" badge. All of them fit every engine offered in the 2021 Express 2500.

In the SAE 75W-85 grade, ACDELCO supplies 1 part: grouped under the catalog's "SAE 75W-85" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 104091.

In the SAE 75W-90 grade, VALVOLINE supplies 6 parts: grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV820.

Listed part numbers: VALVOLINE VV820, ACDELCO 104091 and VALVOLINE VV975, plus the other parts above.

This table covers the U-joints in the driveshaft. Read more

13 Universal Joint parts are listed for the 2021 Chevrolet Express 2500, from MOOG, ACDELCO, GMB and 4 other brands. MOOG 295 carries the "Popular" badge. 10 parts fit every engine; the other 3 are engine-specific.

Economy: 1 part, from WJB / INMOTION PARTS. A representative part number is WJB / INMOTION PARTS UJT295.

The Heavy Duty section: 6 options from MOOG, ACDELCO, FVP and 1 other brand. MOOG 295 is listed in this group.

The Standard Replacement section: 6 options from MOOG, GMB, ACDELCO and 2 other brands. GMB 2100160 is listed in this group.

This table covers the Universal Joint Strap kits. Read more

DORMAN supplies both parts for the 2021 Chevrolet Express 2500. All of them fit every engine offered in the 2021 Express 2500.

Part numbers include DORMAN 15021 and DORMAN 13862.